Bottle brush



B. B. JACKSON Marc 1929- aorma: BRUSH original Filed sept- 1927 2 Sheets-Sheet 1 finial? Zia/(3 2275 19 J cirqzz ,QmWh/M,

B. B. JACKSON March 2 1929.

Igor-rm BRUSH- 1927 2 Sheets-Sheet 2 Original Fild Sept.

" Reissued Mar. 26, 1929.

' rumrsn TES PATENT OFF-ICE,

ENJAMIN JACKSON, on DELPHI, N IANA.

' Original No'. i,e 7s,943, dated July 3'1,-1928,'sai a1 1a. 217,995, fiie fls tmbr a, 1927." Application for reissue filed January 1 1929. Serial No. 332,987.

My invention relates to bottle brushes and i moreesp'eci'ally brushes which are adapted to clean small-neckedbottles. My brush, however, has wideapplicationuzand can be usedon wide-necked bottles and also onother receptacles which are not strictly bottles. I One object of my invention to provide a bottle brushfwhich, while it can. be introduceed through a relatively small neck if 0 9 necessary, carriesi bristles: so arranged; that those whichqar'ef disposed adjacent the sidef" WHJl'OfFtllB- bottle when the brush is in use willpoint toward the sidewall,.while those 9 bristles which lie adj acent the bottomof'the 9 brush will pointtowardthe bottom andfalso' 9 towardithe "bottom corner. The advantage I gain is that'I Secure a scouring actionby I i the ends ofthe bristles on the sidewalhibottom and bottom corner ofthe bottle, rather 29 than merely awiping or stroking action cover some areasfas would be the caseif the bristles were normally supported in moreor less parallelism with the surfaces they are r to contact: I a 9 t I further object of my invention is thedesign'ofa brush having these characteristics which can be manufactured economically, as,

for example, by the standardized 'twisted,

wire core brush construction which brush manufacturers are usually well equippedfto In such a construction the,

bristles are radiallyarranged on thecore and i I their ends -constituteI;a;- cylindrical surface manufacture.

withvthe' coreas its axis; 9

usinglsuch a twisted gwire or other cylindrically surfaced brush constructlon, theax s of which is'conformed to follow-a peculiar curve which may variously be described as 40 the fractional convolution of a conical spiral,

or afractional convolution of a 0yllI1lI1CLl spiralof varyingpitch, or a lineparabolr cal-1y curved in two intersecting planes; In general, the-characteristic of: this form of curve howev9er 'des'cribedis such that, de-] n raled, form a cylindrical surface with the core as its axis. I contemplate, however, that this scribed in reference to a conventional design ofpop gbottleyforj example, in which the 9 brush w ould beinSerted -for use, the curve,

f1 toward the upperend of the brush would be section it I preferably efiectthel foregoing obj ects Thus, if

may vary" within considerable latitude. It]? need not be exact because the core of the brush itself is preferably quite resilient, and the-radial bristles themselves are relatively long and arealso resilient, sothat the brush as a Whole will give sufliciently to adapt itself to mypurpose of a universal scouring action for-the several surfaces, of thbrush.

I The foregoing and other objects, advantages and features of myinvention are set forth in the following description and in the accompanyingdrawings wherein Fig. 1' is an elevational veiw ofmy brush within a bottle F 2 is an eleyational view of my brushj at r ght angles to the view ofFig. 1; J 9 Flg. 3:1sa bottom plan view of the handle and bristle supporting member showing the outline of the, bristles dotted lines,

Fig.4 is adetail cross-sectional view on f he linsH of Fig. 2; '7

g-'51s an elevational sectional view of another'embodiment'ofiny bottle brush;

Fig. 6"is a similar elevational view of another embodimentof thefbolttle brush a slightlydifferentlpositiongj .9

M bot lei brushas a we e, 10, mam- I prise in general a handle'portion 11', a bristle supporting memberor core 12, and a plurality of" radially extending bristles 13, distributed alongithe corei Preferably, for economy of manufacture, thesupporting member or core 12 consists of a pair of wires' lettwisted together with uniform length bristles the'rebe- 9 tween so that each bristleflextends diametri-v cally of the core-and theends of the bristles as'a*Wh0le,fwhile more orlesshelically spi is only oneofinany ways in'whichthe bristles 1 could be mounted. Dueto the peculiar curve [I have above described for the axis of the brush,'the bristles along the upper end of the brush lie more or 'less in the planes'normal 75 showing thebottle in cross I axis of the brush has turned through some ninety degrees and the bristles extend in a plane parallel to, and preferably almost coinciding with, the axis of the bottle. The transition of the successive convolutions of bristles which constitute the brush from a plane generally normal to the axis of the bottle to a plane radial to the axis of the bottle, is a gradual transition. Also, the transition is more gradual at the upper end of the brush and becomes more pronounced or accelerated at the lower point of the brush. As a result, the bristles maintain their characteristic of pointing toward the side walls of the bottle except at the region adjacent the bottom end of the brush where their turn is more pronounced, and they extend toward the bottom and bottom corner of the bottle. But the resiliency of the supporting core and the resiliency of the bristles themselves permit the brush to give sufficiently to effect a satisfac t0ry;sc0uring action throughout the entire length of the brush.

The lower end 15 of the twisted wire core does not point toward the bottom of the bottle nor toward the bottom corner, but is brought more or less into parallelism with them, so that the bristles tend to hold the end of the twisted wire out of scratching contact with the inner surfaces of the bottle.

If the brush is rotated by twisting the handle 11, all of the inner surfaces of the bottle are scrubbed by an action which calls into play the ends of the bristles, which are most eflective in dislodging foreign matter. The handle 11 of the brush can be made of'a straight length of wood or the like, or if desired the handle can be given a slight turn as at 20 (Fig. 5) to give a crank action. This olfset 20 would be offset in a directionopposite'to that in which the bottom end 15 is offset.

The neck 18 of the bottleeither with or without the crank handle featnremay conveniently act as a fulcrum to help force the lower end 15 of the brush into the bottom corner ofthe bottle. Any such pressure also will tend; to deform the resilientcore of the brush, if necessary, to insure that a good scouring action is obtained over the entlre inside area of the bottle. If desired, the wire core may itself constitute the handle and be offset into a more formal crank handle 21 by bends as at 22 and 23 (see Fig. 6). The'outer end 24 of the twisted wire core can be turned into an eye for hanging the brush on a hook and shielding the sharp end of the wire. Fig. 2

shows aconvenient method of affixing the wooden'handle by a bore 17 in the lower end of the handle 11, into which theupper end 16 of the twisted wire is driven,

My brush is inserted in anarrow-necked bottle by an action somewhat comparable to that of a corkscrew, and rotation of the brush at such time will serve to clean the inner surface of the neck itself and the inner surface of the flared port-ion just below the neck, and again in removing the brush the neck will similarly be scoured. The fact that the curve of my brush is but a fractional convolution of a helix permits it to scour the inner cylindrical surface of a bottle of a much greater diameter than the neck of the bottle through- Which the brush must be inserted. It will be noted that my brush does not require any hinged portions which have heretofore often been employed to permit the insertion and removal of a brush which would secure moreor less of the simultaneous scouring action of the several surfaces which I seek. Nor does mybrush require an unusual or exceptional placing of certain of the bristles or the attachment of special bristles forscouring the bottom corner of the bottle. All of the bristles of my brush may be formed by the same manufacturing process and as a part of the standard cylinder-like brush construction. Special placement of certain bristles or the use of different kinds of tufts of bristles in the same brush result in a construction which is difficult to manufacture by ordinary and standardized machine processes.

In further explanationof the peculiar curve I give the brush, and possibly for convenience in manufacturing operation, the curve could straight core into a curve in a single plane, 7

which curve would cover an arc of ninety degrees or so, and with the radius of curvature least at the lower end increasing to infinity at the other end,and then giving this curved core another and similar curve in a second plane at right angles to the first plane. The are of, the second curve, however,might vary from a few degrees up toor even beyond ninety degrees.

While I have thus described this specific embodiment of my invention, I eontem late that many changes may be made there rom without departing from the scope or spirit of my invention as defined in the appended claims.

I claim:v

1. A bottle brush longitudinally.insertable with a lesser radius ofcurvature at the bottom end and a greater radius of curvature toward the upper end.v 1.

2. Abottle brush for longitudinal insertion through the neck of a loottleand having bristles arranged in a cylindrical conformation,

which is so curved that, when the brush is in use, the bristles at the upper end of the brush extend toward the side wall of the'bottle and:

convolution of a helix of increasing pitch. 7

1 ofdeformable cleaning members supported by I a supporting member adapted to ,beinserted below the upper end of the brush gradually turn so that the bristles atthe lower end extend towardthe bottom and bottom corner of the bottlefor simultaneous engagement with the sidewall, bottom and bottom corner of the bottle upon rotation of the-brush,

3. A cleaning brush comprising a plurality longitudinally through the neck of. a bottle and the supporting member being spiraled through a fractional convolution such that CBItHlIl Of said cleaning IIIQIDbGISIBSPBCtlVGlY come in simultaneous engagement with the wall, bottom, and bottom corner of the bottle.

. 4C. A cleaning brush comprising a plurality of bristles and a supporting core for the same, c

said, core being curved like a helix ofincreasing pitch,having an axially projecting hanle. v

' 5, A bottle brush comprising a rod-like core,

I having transversely extending'bristles carv ried thereby, the core being, spiralled with increasing pitch through a fractional convolution whereby itsend portionextends substantially along the bottom corner of'the bottle when in use,with the transversely extending bristles extending-therefrom toward the cor v ner and With the'bristles' at other portions the arranged to form acylindrical body, said core being curved through substantially a extending toward the side wall of the bottle. 6. A bottle brush comprising a twisteduwire core supporting diametrically extending brisquarter convolution, and in three dimensions,

with decreasing radius of curvature toward its lower end.

7. A bottle brush comprising a corehaving transversely extendingbristles carried thereby, one end of said core forming a handle, the end portionof said brush adjacent said handle extending, substantially axially there with, the other end portion of the brush being spiralled a fractional convolution about an axis substantially, parallel to the handle, to permit introduction into a narrow necked bottle, said curvature being such that the bristles may lie against the inner side of the bottle,

rest flat against the bottom of the bottle, and extend intothe lower corner thereof.

8. A cleaning brush comprising a plurality of bristles and a supporting member for the same, said supporting member being curved like a helix of increasing diameter and pitch and having an axially projecting handle.

9. A bottle brush comprising a rod-like core having transversely extended bristles carried thereby, the core being conicalla spiral I with its end portion arranged to extend substantially along the bottom corner-0f the bottle when in use with the transversely extending, bristles-pressing into the corner, and

with the bristles at other portions pressing against the side wall of the bottle substantially throughout its height. i

In Witness whereof, I hereunto subscribe my name this 22 da of December, 1928.

BENJ MIN BL JACKSON. 

